9FingerFury
Posts: 6
Joined: Sun Sep 02, 2018 7:43 am
Delivery Date: 01 Sep 2018
Leaf Number: 338080

Said goodbye to 11mpg yesterday

Sun Sep 02, 2018 8:13 am

Thought I'd introduce myself. I've wanted an EV for a few years, and finally decided to trade in my 2004 GMC Sierra 2500 (6.0 gasser) for a 2014 Nissan LEAF, with just over 40K miles on it. It looks almost like new and I'm very impressed with it.

Image

DarthPuppy
Posts: 689
Joined: Sun Aug 11, 2013 8:45 pm
Delivery Date: 11 Aug 2013

Re: Said goodbye to 11mpg yesterday

Sun Sep 02, 2018 9:08 am

Congrats on the big step forward in efficiency. I hope you have a pleasant transition to EVs. Read through this forum and you will learn some of the challenges and ways to handle them.
'13 Leaf SL
'18 Honda Clarity Touring PHEV

LeftieBiker
Posts: 9602
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 31 May 2013
Location: Upstate New York, US

Re: Said goodbye to 11mpg yesterday

Sun Sep 02, 2018 1:44 pm

Several quick suggestions on pitfalls to avoid:

* Don't leave the car plugged in but not charging for more than a few hours. This will kill the 12 volt battery.

* Don't leave the car sitting fully charged for more than a couple of hours, especially in Hot weather. This likely increases battery degradation.

* Don't recharge when the state of charge (SOC) is higher than 80% unless you really have to do it. Also not good for the battery pack.

* If the car has a Quick Charge (QC) port, avoid using it to fast charge when the battery temp "gauge" shows more than 6 bars. 5 bars or less is best, but not always possible in Summer.
Scarlet Ember 2018 Leaf SL W/ Pro Pilot
2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

warrenc
Posts: 110
Joined: Tue Mar 28, 2017 2:33 pm
Delivery Date: 28 Apr 2017
Leaf Number: 418438
Location: Tacoma,WA

Re: Said goodbye to 11mpg yesterday

Sun Sep 02, 2018 2:44 pm

Younker Nissan, you must be in the Seattle area. I know the service manager there, Charlie. He's a good guy.
2013 Leaf SV
Tacoma, WA

9FingerFury
Posts: 6
Joined: Sun Sep 02, 2018 7:43 am
Delivery Date: 01 Sep 2018
Leaf Number: 338080

Re: Said goodbye to 11mpg yesterday

Sun Sep 02, 2018 5:54 pm

Thanks everyone. Yes, I’m close to Seattle area. I live in Covington and teach in Maple Valley (Tahoma School District).

cwerdna
Posts: 8286
Joined: Fri Jun 03, 2011 4:31 pm
Delivery Date: 28 Jul 2013
Location: SF Bay Area, CA

Re: Said goodbye to 11mpg yesterday

Sun Sep 02, 2018 6:01 pm

Welcome!
warrenc wrote:Younker Nissan, you must be in the Seattle area.

Indeed. That's what I thought too. Younker Nissan is in Renton, which is southeast of Seattle. I lived in King County for about 9 years.

OP lives in an ideal climate for Leaf batteries.

'13 Leaf SV w/premium package (owned)
'13 Leaf SV w/QC + LED & premium packages (lease over, car returned)
'06 Prius

Please don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

jjeff
Posts: 1712
Joined: Wed Jan 13, 2016 9:10 am
Delivery Date: 13 Jul 2014
Leaf Number: 422121
Location: MSP MN

Re: Said goodbye to 11mpg yesterday

Sun Sep 02, 2018 6:34 pm

And here I thought the OP was in NY, Yonkers that is :lol:
2012 SL purchased used 2/'16
2013 S w/QC purchased new
Juicebox Premium 60a L1/L2 EVSE, Ebusbar 16a L1/L2 EVSE
'12 EVSEupgrade'd 20a L1/L2 EVSE, '13 EVSEupgrade'd adjustable 6-20a L2, 6-13a L1 EVSE
Zencar 13, 20, 30a L1/L2 portable EVSE
GE Durastation 30a

WetEV
Posts: 2349
Joined: Fri May 04, 2012 8:25 am
Delivery Date: 16 Feb 2014
Location: Near Seattle, WA

Re: Said goodbye to 11mpg yesterday

Mon Sep 03, 2018 8:37 am

I also own a 2014 LEAF SL with 44,000 miles on it. Nice car.

LeftieBiker wrote:Several quick suggestions on pitfalls to avoid:

* Don't leave the car plugged in but not charging for more than a few hours. This will kill the 12 volt battery.


Never had a problem with this. I usually plug the car sometime during the day, it recharges overnight, and I unplug the next day. The earlier cars (2011-2012) (I also owned at 2012) did have this problem if left plugged in for days. This was a bug: the DC to DC converter that charges the 12 V battery would never come on while the car was plugged in and not charging. My car doesn't have this bug, and is an early 2014.

LeftieBiker wrote:* Don't leave the car sitting fully charged for more than a couple of hours, especially in Hot weather. This likely increases battery degradation.


Best practice is to time the charge to complete as soon as reasonable before departure. The difference in battery life is noticeable. Or use timers to keep the charge level below 90% or so most of the time.

LeftieBiker wrote:* Don't recharge when the state of charge (SOC) is higher than 80% unless you really have to do it. Also not good for the battery pack.


Also best practice, but isn't as important. If you find yourself often doing this, there are several ways to avoid it. Ask, or search.

LeftieBiker wrote:* If the car has a Quick Charge (QC) port, avoid using it to fast charge when the battery temp "gauge" shows more than 6 bars. 5 bars or less is best, but not always possible in Summer.


The reason to use the QC is that you need to travel a longer distance than a full battery can give you. So if you are doing a very long drive, you may well get to higher battery temperatures. Battery life gets shorter when battery temperature rises. About twice as fast of loss at 10 C warmer. About 4 times as fast at 20 C warmer. So if you drive a long ways, QC twice and raise your battery temperature from the more normal summer of about 20 C (70F) to 35C or so. Which will shorten the life of the battery by about 3 days. Or if you do this once a year, will shorten battery life by about 1%. So don't worry if you do this once. If you did this every day, would be a problem!

The temperature bars are not at all precise, and 7 Temperature bars could mean a battery temperature as low as 23 C (or 73 F). If you really want to or need to know, I'd suggest you get LeafSpy or similar.
WetEV
#49
Most everything around here is wet during the rainy season. And the rainy season is long.
2012 Leaf SL Red (Totaled)
2014 Leaf SL Red

WetEV
Posts: 2349
Joined: Fri May 04, 2012 8:25 am
Delivery Date: 16 Feb 2014
Location: Near Seattle, WA

Re: Said goodbye to 11mpg yesterday

Mon Sep 03, 2018 8:49 am

cwerdna wrote:OP lives in an ideal climate for Leaf batteries.


Mostly true. Somewhat closer to the Sound would be even better.

One more comment to the OP.

Make sure your garage stays as cool as reasonable. A south facing, not vented garage I'm aware of would stay quite hot, being as much as 20 C warmer than outside. Put a thermometer in your garage, and compare with outside temperatures. If you have a problem, consider adding insulation to the doors, a high and a low vent, putting a box fan in a window during the summer on a timer so it runs at night, if you have a window that is, or similar.
WetEV
#49
Most everything around here is wet during the rainy season. And the rainy season is long.
2012 Leaf SL Red (Totaled)
2014 Leaf SL Red

brotherjethro
Posts: 53
Joined: Mon Jul 03, 2017 6:21 am
Delivery Date: 03 May 2017
Location: Vancouver, WA

Re: Said goodbye to 11mpg yesterday

Tue Sep 04, 2018 12:30 pm

WetEV wrote:
cwerdna wrote:OP lives in an ideal climate for Leaf batteries.


Mostly true. Somewhat closer to the Sound would be even better.

One more comment to the OP.

Make sure your garage stays as cool as reasonable. A south facing, not vented garage I'm aware of would stay quite hot, being as much as 20 C warmer than outside. Put a thermometer in your garage, and compare with outside temperatures. If you have a problem, consider adding insulation to the doors, a high and a low vent, putting a box fan in a window during the summer on a timer so it runs at night, if you have a window that is, or similar.


I second that: I live in Vancouver, WA, which should be ideal for the Leaf battery, but my south-facing insulated garage stays hot all night (it gets hot from leaving the doors open a lot, and also thanks to our ICE car). Overnight lows can be in the mid-50's outside, but the garage will still be ~80F in the morning. While I would love to have a powered garage vent system, that seems a bit overkill since it's just July and August which are the problem months. Instead, I have started leaving the Leaf outside overnight when it's hot in the garage and then bringing it back in to charge when I wake up. Probably not really needed, but since I park it outside in the heat on weekdays, it's nice to start with a cool battery.

Side note: Summers were a lot cooler here when I was a kid. Seemed like it always was raining, even in July! Now the whole West coast is on fire every summer.
2013 Pearl White SV, bought used in 2017 with only 5100 miles. Vancouver, WA.

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